| Size | Pitch | TPI | ThreadClass | Thread Length | Overall Length | Neck Length | Shank Diameter | Square Size | Square Length | No. of Flute | Tapping Drill Dia |
|---|
| ØD1 | P | - | Limit | L1 | L2 | L3 | ØD2 | K | Kl | Z | Ød1 |
|---|
| M2 | 0.4 | - | 6HX | 8 | 45 | 13 | 2.8 | 2.1 | 5 | 5 | 1.83 |
| M2.2 | 0.45 | - | 6HX | 8 | 45 | 13 | 2.8 | 2.1 | 5 | 5 | 2 |
| M2.5 | 0.45 | - | 6HX | 9 | 50 | 15 | 2.8 | 2.1 | 5 | 5 | 2.3 |
| M2.3 | 0.4 | - | 6HX | 8 | 45 | 13 | 2.8 | 2.1 | 5 | 5 | 2.1 |
| M3 | 0.5 | - | 6HX | 11 | 56 | 18 | 3.5 | 2.7 | 6 | 5 | 2.8 |
| M3.5 | 0.6 | - | 6HX | 12 | 56 | 20 | 4 | 3 | 6 | 5 | 3.25 |
| M4 | 0.7 | - | 6HX | 13 | 63 | 21 | 4.5 | 3.4 | 6 | 5 | 3.7 |
| M4.5 | 0.75 | - | 6HX | 14 | 70 | 25 | 6 | 4.9 | 8 | 5 | 4.15 |
| M5 | 0.8 | - | 6HX | 15 | 70 | 25 | 6 | 4.9 | 8 | 5 | 4.65 |
| M6 | 1 | - | 6HX | 17 | 80 | 30 | 6 | 4.9 | 8 | 5 | 5.55 |
| M7 | 1 | - | 6HX | 17 | 80 | 30 | 7 | 5.5 | 8 | 5 | 6.55 |
| M8 | 1.25 | - | 6HX | 20 | 90 | 35 | 8 | 6.2 | 9 | 5 | 7.4 |
| M9 | 1.25 | - | 6HX | 20 | 90 | 35 | 9 | 7 | 10 | 5 | 8.4 |
| M10 | 1.5 | - | 6HX | 22 | 100 | 39 | 10 | 8 | 11 | 5 | 9.3 |
| M11 | 1.5 | - | 6HX | 22 | 100 | 40 | 8 | 6.2 | 9 | 5 | 10.3 |
| M2.6 | 0.45 | - | 6HX | 9 | 50 | 15 | 2.8 | 2.1 | 5 | 5 | 2.4 |
| M12 | 1.75 | - | 6HX | 24 | 110 | 44 | 9 | 7 | 10 | 5 | 11.2 |
| M14 | 2 | - | 6HX | 26 | 110 | 44 | 11 | 9 | 12 | 5 | 13 |
| M16 | 2 | - | 6HX | 27 | 110 | 44 | 12 | 9 | 12 | 6 | 15 |
| M18 | 2.5 | - | 6HX | 30 | 125 | 50 | 14 | 11 | 14 | 6 | 16.8 |
| M20 | 2.5 | - | 6HX | 32 | 140 | 54 | 16 | 12 | 15 | 6 | 18.8 |
DIN2174 HSSE‑Co5% Forming Tap is a non‑chip roll tap manufactured per DIN2174 industry standard. Made of HSSE‑Co5% cobalt‑alloy high‑speed steel, this forming tap utilizes metal plastic deformation to extrude workpiece material and create internal threads, instead of removing material by cutting.
Built‑in oil groove structure optimizes coolant circulation during tapping process for effective lubrication and heat dissipation. TiCN functional coating improves surface hardness, abrasion resistance and anti‑adhesion performance, reduces built‑up edge. Formed threads obtain higher tensile strength compared with cutting tap. Widely applied on stainless steel, carbon steel and alloy steel for machine tapping.
Core Specifications
Standard: DIN2174
Material: HSSE‑Co5% (5% Cobalt High Speed Steel)
Coating: TiCN Coating
Structure: With Oil Groove
Type: Thread Forming Tap / Roll Tap (Chip‑less)
Processing Method: Plastic extrusion forming internal thread
Recommended Workpiece: Stainless Steel, Alloy Steel, Carbon Steel
Application: CNC machine tapping
Key Features
✅
DIN2174 Compliance: Strictly follow DIN2174 dimensional standard for stable thread accuracy
✅
HSSE‑Co5% Substrate: 5% cobalt high‑speed steel, great heat‑resistance for tough material tapping
✅
TiCN Surface Coating: Boost wear‑resistance, lower friction, prevent material sticking to tap
✅
Special Oil Groove Design: Promote coolant flow, better lubrication and heat dissipation during continuous machining
✅
Chip‑less Forming Principle: No chip evacuation problem; extrude material to form threads, improved thread strength
✅
High‑durability for Mass Production: Suitable for long‑run CNC tapping on stainless and alloy steel parts
Application Scenarios
Mainly used in CNC machining workshops for mass production of internal threads. Ideal for stainless steel, alloy steel and carbon‑steel components, widely used in auto parts, hydraulic fittings, hardware and general mechanical manufacturing.
Usage Note
Sufficient tapping coolant is required. Select correct pre‑drill hole size for forming tap; avoid over‑load spindle feed rate to extend tool service life.
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